基于TREC的临近预报  

Nowcasting based on TREC

作　　者：武娜[1] 王贤勤[1] 佘勇[1] 

机构地区：[1]成都信息工程学院,四川成都610225

出　　处：《成都信息工程学院学报》2008年第6期642-647,共6页Journal of Chengdu University of Information Technology

摘　　要：基于雷达数据的风暴体识别、追踪及预警方法是最早出现的临近预报技术,也是天气雷达系统和强天气预警业务的基本组成部分。如何准确而快速地发布强对流风暴预警一直是气象工作者关注的重要课题。针对目前天气雷达探测强风暴方法在实际应用中存在的问题,提出了利用单CAPPI资料进行深度优先搜索,从而进行强风暴的识别;利用TREC算法匹配两时刻的风暴单体;根据风暴在过去两时刻的中心位置线性外推从而预报下一时刻风暴的位置。结果表明能较好地识别、追踪和警戒强对流性天气。In light of the problems that the storm cell identifying algorithms a single CAPPI identifying algorithm with depth-first search is developed. The TREC algorithm is used to match the two time moments storm cell. Based on the center location forecast moments the storm location of the next time is forecasted. The result shows that this algorithm makes the severe convection weather identified, tracked and warned better.

关 键 词：风暴识别 雷达追踪风暴 TREC 临近预报 

分 类 号：P412.25[天文地球—大气科学及气象学]